Re: moby solder sucker
I've learned that they are called L-type 3-way ball valves. They may also be called multiport valves, diverter valves, or selecting valves.
Brass & stainless L-type 3-way valves can be bought [url=http://www.ebay.com/sch/i.html?_odkw=%223+way%22+%28%22L+port%22%2C%22L+type%22%29+%28ball%2Cselecting%29+valve&_osacat=0&_from=R40&_nkw=%223+way%22+%28%22L+port%22%2C%22L+type%22%29+%28ball%2Cselecting%2Cdiverter%29+valve&_sacat=0]on eBay[/url] starting at about $10.
Here's a company which sells many types...
ncdave
Member
Last Activity: 08-31-2016, 10:25 AM
Joined: 10-13-2003
Location: Cary, NC
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Last edited by ncdave; 08-31-2016, 10:25 AM. -
Re: Lenovo E520 Backlight Problem..
wainy54, trebo & usman1972, you saved me! I was at my wit's end.
The culprit on mine was F4901, too. Unlike [url=http://www.geeksalive.com/Screenshot_2013-06-22-15-14-41.png]yours[/url], mine was marked with a tiny "3" which could be read with a jeweler's lupe. (The other two fuses, F4902 & F4903, were marked F and G, and were not as tiny.)
I think that's the tiniest thing I've ever successfully soldered. Wow, that was hard.
This is my magnifying glass kludge (my biggest magnifying glass...Last edited by ncdave; 03-31-2015, 01:59 AM.Leave a comment:
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61A! Wow! That has GOT to be more than plenty.
I'm stumped. The only thing I can think of to suggest is to get
yourself a DC amp-clamp and find out what it is really drawing.Leave a comment:
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If, measured from an unused drive connector, 5v is sagging down to less than 4.75, then your PSU is inadaquate. You need a PSU with more moxie on the 5v output. Look specifically at the current rating for the 5v rail (rather than the wattage rating of the PSU), and get a PSU that is rated for higher current output at 5v.Leave a comment:
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By the molex connector, do you mean an unused drive connector, coming from the PSU? If so, then where are you measuring the stable 5.0?
BTW, IMO 5.00v is a bit low for the 5v line from the PSU. I like to see about 5.10-5.15v, to allow for a bit of voltage to be dropped en route to the components. The ATX spec allows for +/- 5%, so 4.75-5.25v is within spec, but being toward the high end of that range is best.
-Dave...Leave a comment:
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When you measure from the red wire to a black wire on a drive connector, with a DVM, does it measure 5.0v? Or does it measure 4.4v (or 4.7v with your mod)? There's no way it should drop 0.3v across the wire between PSU and the motherboard!Leave a comment:
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Ouch!
...
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moby solder sucker
Don't call this a "recommendation," but, for your amusement, and with apologies to Tim "The Toolman" Taylor, here are a couple of photos of my solution:
[url=http://www.burtonsys.com/BP6_desoldering1.jpg]http://www.burtonsys.com/BP6_desoldering1.jpg[/url]
[url]http://www.burtonsys.com/BP6_desoldering2.jpg[/url]
Yes, they are hooked "in series," with the bags removed for extra power. (Removing the beater-brush or belt might also help a bit.) They made a most impressive roar, lemme tell you! Note...Leave a comment:
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5v comes straight from the power supply. Though it is hard to believe that a new 510w psu could be incapable of supplying enough current at 5v, that must be it. Try a different psu.
Better yet, if you know someone who has a DC "amp clamp" meter, then borrow it and measure the current drawn at 5v (red wires), 3.3v (orange wires), and 12v (yellow wires). (Example: simply gather all the red wires together where they come from the psu and clamp the meter around them to measure the summed current drawn on all the 5v wires.) That'll tell you what current capability your machine...Leave a comment:
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service life
I think that service life does matter. 2000 hours is less than 3 months of continuous running time.Leave a comment:
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Re: Ghetto Cap Replacement Tips
That is very good advice!! Years ago, I peeled a great big solder spash off the very center of one of my eyeglass lenses. Accidents happen. I shudder to think what that would have done to me if I'd not been wearing glasses.
-Dave...Leave a comment:
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Well, in the interest of fairness, I should mention that the RMA replacement BP6 which Abit sent me does seem to work okay, in spite of the Tayeh caps. I still would feel a lot better if they'd replaced 'em, but (for now, anyhow) it runs fine.Leave a comment:
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Well, I was wrong. I didn't believe that the techs at Abit would replace only some of the bad caps on a motherboard. But I just (finally!) got back the RMA replacement for that BP6 that I sent 'em, and ten of its 1500uF caps are still Tayeh, the other two are Teapo. So it sure looks like they just pulled out a couple of visibly bad Tayeh caps and replaced them with Teapo caps. Sheesh!
EC10 is just 100 uF, too.
The 1000uF caps are all gold-writing-on-black Teapos.
Big waste of time and shipping. I shoulda recapped it myself.Leave a comment:
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Where does one find low-ESR 2200uF or larger caps in an 8mm can?Leave a comment:
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Teapo
Topcat wrote:
> One little footnote, I've tried to locate and contact Teapo, which is
> another one that has filled our boards with defective caps, and I
> couldn't even locate them.
Teapo is a division of Sampo:
[url]http://www.sampo.com.tw/english/portal.asp[/url]
[url]http://www.sampo.com.tw/english/Support/supprot_online.asp[/url]
The Sampo \"company profile\" page says:
\"Sampo was founded over 67 years ago in 1936 as a small family business. Since then,...Leave a comment:
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c8adu wrote:
> want to send me some samples to torture test?
Sure! Email me your addresses (email and postal) to
dave221 at burtonsys.com
I will be very interested in your conclusions.
Please use a descriptive subject line (e.g., \"Jackcon capacitors\") in your email, because I delete about 600 spams per day, and if the Subject line just says \"hi\" I will probably think it is spam and delete it without reading it.
I recapped my dead BP6 with these new Jackcon capacitors. It didn't work at first, but after...Leave a comment:
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Tomcat, your coils (and the replacement caps that Jackcon sent me) fixed my motherboard!! THANK YOU!!!
-DaveLeave a comment:
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Jackcon sent me 80 free caps: 40 each of 1000uF 10v and 1500uF 6.3v, both low-ESR in 8mm (tiny) cans.Leave a comment:
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Tomcat wrote:
> Dave,
> I've pulled MANY dead Teapo's out of VP6's... I have some bad
> ones in the bin, I'll try and get a couple pics for ya...
The dirty liars! Grrrrr.... :-(
I guess I'll just keep a close eye on this VP6, for signs of failure.
Thanks,
-DaveLeave a comment:
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Tomcat wrote:
> I've never encountered 'Rulycon' caps, but from the photo you posted, the Rulycon had a swollen top
Wow, you're right! You've got a good eye. I didn't even notice that. The swelling is subtle, but it IS there.
W/r/t the TEAPOs, how sure are you that they were bad? I thought that Teapo was supposed to be okay. This article [url]http://www.niccomp.com/taiwanlowesr.htm[/url] about the bad capacitor problem says, \"Teapo has stated that it obtains its electrolytes from Japan and was not affected.\" Maybe they were lying. My VP6 has...Leave a comment:
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